Comment 0 for bug 1765914

If I run a Java application with oracle-java-8, the windows and fonts are all normal size. When I run the same application with openjdk-11-jre, everything is scaled up to double size (see attached image, which shows an application on the left running in Java 8 and the same application on the right running in Java 10 (from the package openjdk-11, not openjdk-10 for some reason).

My normal screen layout is 1920x1080 with two screens, so the command "xrandr -q | awk -F'current' -F',' 'NR==1 {gsub("( |current)","");print $2}'" shows 1920x2160.

One of the screens is 4K, so presumably Java *might* be detecting this and deciding it needs to double everything in size, but this is clearly an error since I'm not even using this mode.

If I set the laptop to use a single external 1920x1080 monitor, it makes no difference - the Java applications are still double the size that they should be.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: openjdk-11-jre 10.0.1+10-1ubuntu2
Uname: Linux 4.17.0-041700rc1-generic x86_64
ApportVersion: 2.20.9-0ubuntu6
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Apr 21 14:12:39 2018
InstallationDate: Installed on 2017-08-16 (247 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
SourcePackage: openjdk-lts
UpgradeStatus: Upgraded to bionic on 2017-11-17 (154 days ago)